But isn't this the hobby where people will spend multiple hundreds of extra dollars for less than 1-3% improvement in SQ?

That said, I did find the P7 having a better build than either the momentum and the M500. It's only 50$ more than the momentum, but seems a lot better built, plus it folds down smaller. That alone might be worth the extra money to some.

That being said, I guess I should actually try them first. They better be a good improvement over the m500/ws99/Momentum! lol

Ahh looks like you can get it on Amazon for cheaper. I was going by retail store prices where they are list $349 :) I actually did listen to them and preferred the P7 over the Momentum and M500 listening from my source (Audioengine D1 from my laptop and directly out of an iPhone) , but since SQ is subjective, I was only using build quality and materials as a differentiator.

Well...as it appears, my ears are finally coming back around to IEMs. I no longer seem to have a nagging pain after a listening session with them. So I picked up a pair of Bose QC20i (thanks to Tyll's review in part on innerfidelity.com). I think I'll add them to my comparison over the holidays. Gotta say the NC circuitry is scary good! So much better than anything I've heard before (including the QC15s). Sound quality is very clean. More to come...

On another note, time to thin the herd down a bit and I've listed both my Sennheiser Momentums (Over Ear) and KEF M500s on the F/S fourm (see my sig for further details). Please let me know if you're interested.